chr2-232014938-C-T

Variant names:

• chr2-232014938-C-T
• rs1694312197
• NM_152383.5:c.11C>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_152383.5(DIS3L2):​c.11C>T​(p.Pro4Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,678 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P4T) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: DIS3L2 NM_152383.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.41
• Publications: 0 publications found

Genes affected

DIS3L2 (HGNC:28648): (DIS3 like 3'-5' exoribonuclease 2) The protein encoded by this gene is similar in sequence to 3'/5' exonucleolytic subunits of the RNA exosome. The exosome is a large multimeric ribonucleotide complex responsible for degrading various RNA substrates. Several transcript variants, some protein-coding and some not, have been found for this gene. [provided by RefSeq, Mar 2012]

DIS3L2 Gene-Disease associations (from GenCC):

• Perlman syndrome

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, G2P, ClinGen, Labcorp Genetics (formerly Invitae)

ENSG00000227033 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.08840075).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_152383.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DIS3L2	NM_152383.5	MANE Select	c.11C>T	p.Pro4Leu	missense	Exon 2 of 21	NP_689596.4
	DIS3L2	NM_001257281.2		c.11C>T	p.Pro4Leu	missense	Exon 2 of 14	NP_001244210.1	Q8IYB7-3
	DIS3L2	NM_001257282.2		c.11C>T	p.Pro4Leu	missense	Exon 2 of 7	NP_001244211.1	Q8IYB7-4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DIS3L2	ENST00000325385.12	TSL:5 MANE Select	c.11C>T	p.Pro4Leu	missense	Exon 2 of 21	ENSP00000315569.7	Q8IYB7-1
	DIS3L2	ENST00000409401.7	TSL:1	c.11C>T	p.Pro4Leu	missense	Exon 2 of 7	ENSP00000386594.3	Q8IYB7-4
	DIS3L2	ENST00000390005.9	TSL:1	n.11C>T		non_coding_transcript_exon	Exon 2 of 21	ENSP00000374655.5	Q8IYB7-2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461678 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 727140

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.0000299 AC: 1 AN: 33462

American (AMR) AF: 0.00 AC: 0 AN: 44714

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39692

South Asian (SAS) AF: 0.00 AC: 0 AN: 86240

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53396

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111890

Other (OTH) AF: 0.00 AC: 0 AN: 60384

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Perlman syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.076
BayesDel_addAF	Benign	-0.17	T
BayesDel_noAF	Benign	-0.48
CADD	Benign	20
DANN	Benign	0.86
DEOGEN2	Benign	0.012	T
Eigen	Benign	-0.30
Eigen_PC	Benign	-0.15
FATHMM_MKL	Uncertain	0.87	D
LIST_S2	Benign	0.77	T
M_CAP	Benign	0.014	T
MetaRNN	Benign	0.088	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.1	L
PhyloP100		2.4
PrimateAI	Benign	0.30	T
PROVEAN	Benign	-1.2	N
REVEL	Benign	0.038
Sift	Benign	0.096	T
Sift4G	Benign	0.36	T
Polyphen		0.0010	B
Vest4		0.18
MutPred		0.30		Gain of MoRF binding (P = 0.017)
MVP		0.043
MPC		0.23
ClinPred		0.38	T
GERP RS		3.7
Varity_R		0.073
gMVP		0.32
Mutation Taster		=92/8	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs1694312197; hg19: chr2-232879648;